Ruth Yanai

Ruth D. Yanai
Professor and Director, of Graduate School Program in Environmental Science

210 Marshall Hall
1 Forestry Dr.
Syracuse, New York 13210

Phone: (315) 470-6955/470-4868


Highest Education

Ph.D. Yale University (Forest Ecology), 1990.

Areas of Study

Current Graduate Advisees

Graduate Advisees

Jerome BarnerJerome Barner

  • Degree Sought: MS
  • Graduate Advisor(s): Yanai
  • Area of Study: Natural Resources Mgt
  • Undergraduate Institute: University of Vermont

Personal Statement
I am interested in the influence of mycorrhizal fungi on nutrient dynamics and cycling processes in northern hardwood forests. Through practical understanding of below ground processes (including fungal interactions), I ultimately aim to work towards improving landscape scale forest management practices to incorporate these fundamental belowground interactions.

Graduate Research Topic
My current research consists of evaluating the influence of two major mycorrhizal guilds (ectomycorrhizae and arbuscular mycorrhizae) on nutrient dynamics in northern hardwood forests. Specifically, the influence of mycorrhizae on nutrient uptake capacity of fine roots of yellow birch and red maple. Concurrent research includes ectomycorrhizal associations with American beech seedlings across fertilizer treatment plots (N, P, and Ca) in the White Mountains.

Favorite Quote
"I will arise and go now, for always night and day I hear the lake water lapping with low sounds by the shore; While I stand on the roadway, or on the pavements gray, I hear it in the deep heart's core." WB Yeats

Panmei JiangPanmei Jiang

  • Degree Sought: PHD
  • Graduate Advisor(s): Yanai
  • Area of Study: EFB Plant Science & Biotechnology

Ehren MolerEhren Moler

  • Degree Sought: PHD
  • Graduate Advisor(s): Yanai
  • Area of Study: FRM Ecology and Ecosystems

Kara PhelpsKara Phelps

  • Degree Sought: MS
  • Graduate Advisor(s): Parry and Yanai
  • Area of Study: Coupled Natural and Human Systems

Yang YangYang Yang

  • Degree Sought: PHD
  • Graduate Advisor(s): Yanai
  • Area of Study: FRM Ecology and Ecosystems
  • Undergraduate Institute: Minzu University of China

Personal Statement
I'm interested in forest-based environmental issues that raised currently. I'm more focused on nutrient cycling in forests and the way to assess the forest health.

Graduate Research Topic
My project is detecting the change in tree tissue chemistry over time in Northern Hardwoods. Research,conducted in Huntington Wildlife Forest,will show a change in concentrations of tree nutrients in different tree components over time and detail the uncertainties of processing long-time detecting studies in tree nutrients..

Courses Taught

Selected Publications

(All publications)

Yanai, R.D., J.J. Battles, A.D. Richardson, E.B. Rastetter, D.M. Wood, and C. Blodgett.2010. Estimating uncertainty in ecosystem budget calculations. Ecosystems 13(2): 239-248. PDF

Yanai, R.D., M.C. Fisk, T.J. Fahey, N.L. Cleavitt, and B.B. Park. 2008. Identifying roots of northern hardwood species: patterns with diameter and depth. Can. J. For. Res. 38(11): 2862-2869

Yanai, R.D., J.D. Blum, S.P. Hamburg, M.A. Arthur, C.A. Nezat, and T.G. Siccama. 2005. New insights into calcium depletion in northeastern forests. J. For. 103:14-20

Yanai, R.D., W.S. Currie, and C.L. Goodale. 2003. Soil carbon dynamics after forest harvest: an ecosystem paradigm reconsidered. Ecosystems 6:197-212

Yanai, R.D., T.G Siccama, M.A. Arthur, C.A. Federer, and A.J. Friedland. 1999. Accumulation and depletion of base cations in forest floors in the northeastern US. Ecology 80:2774-2787

Yanai, R.D. 1994. A steady-state model of nutrient uptake accounting for newly-grown roots. Soil. Sci. Soc. Am. J. 58:1562-1571

Yanai, R.D. 1992. Phosphorus budget of a 70-year old northern hardwood forest. Biogeochemistry 17:1-22


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